EP3686351A1 - Dispositif de refroidissement de fluide et machine de construction - Google Patents

Dispositif de refroidissement de fluide et machine de construction Download PDF

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Publication number
EP3686351A1
EP3686351A1 EP19305082.0A EP19305082A EP3686351A1 EP 3686351 A1 EP3686351 A1 EP 3686351A1 EP 19305082 A EP19305082 A EP 19305082A EP 3686351 A1 EP3686351 A1 EP 3686351A1
Authority
EP
European Patent Office
Prior art keywords
tank
baffle part
disposed
blower unit
cooling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19305082.0A
Other languages
German (de)
English (en)
Inventor
Quentin COLIBERT
Clément WARNIER
Emile GAUCHER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Power Technology Co Ltd
Original Assignee
Yanmar Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Co Ltd filed Critical Yanmar Co Ltd
Priority to EP19305082.0A priority Critical patent/EP3686351A1/fr
Publication of EP3686351A1 publication Critical patent/EP3686351A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E02F3/325—Backhoes of the miniature type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/063—Arrangement of tanks
    • B60K2015/0638—Arrangement of tanks the fuel tank is arranged in the rear of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/412—Excavators

Definitions

  • the present invention relates to a fluid cooling device and a construction machine.
  • Patent Literature 1 listed below discloses a technique related to a hydraulic shovel having an oil cooler attached to a shroud with a bracket interposed therebetween, the technique attaching a relay pipe to the bracket, the relay pipe allowing operating oil to return to an operating oil tank through the oil cooler.
  • Patent Literature 2 listed below discloses a technique in which a part of a storage tank made of a plastic material constitutes a fan shroud.
  • PTL 1 can increase the efficiency of assembling by unitizing the oil cooler and hydraulic pipings (relay pipe) with interposition of the bracket, but cannot provide a sufficient efficiency of assembling in terms of the operating oil tank because the operating oil tank is disposed separately.
  • an engine room is narrow, and full utilization of its interior space cannot be achieved, disadvantageously.
  • the present invention aims to provide a fluid cooling device and a construction machine that offer a good efficiency of assembling and that allow an efficient layout of pipings for taking contents of a tank out of the tank.
  • a fluid cooling device includes:
  • the fan shroud is molded integrally with the protruding part for supporting the heat exchanger and with the tank that is in communication with the heat exchanger, which can provide a good efficiency of assembling.
  • the tank has the constricted portion in its lower portion. This allows an efficient layout by holding peripheral pipings on the constricted portion, without the need to separately provide a bracket or the like, for example.
  • the extending portion of the tank is disposed below the protruding part that supports the lower portion of the heat exchanger. This allows an efficient layout of pipings for taking contents of the tank out of the tank.
  • the hydraulic shovel 1 includes a lower traveling body 2, work equipment 3, and an upper revolving body 4.
  • the lower traveling body 2 includes a pair of left and right crawlers 21, 21 and a pair of left and right running motors 22, 22.
  • the left and right running motors 22, 22 drive the left and right crawlers 21, 21, respectively, to allow the hydraulic shovel 1 to move forward or backward.
  • the lower traveling body 2 is also provided with a blade 23 and a blade cylinder 23a which is a hydraulic cylinder for turning the blade 23 in an up-down direction.
  • the work equipment 3 includes a boom 31, an arm 32, and a bucket 33 which are independently driven so that an excavation work can be performed on, e.g., earth and sand.
  • Each of the boom 31, the arm 32, and the bucket 33 corresponds to a work unit, and the hydraulic shovel 1 includes a plurality of work units.
  • the boom 31 has its proximal end portion supported by a front portion of the upper revolving body 4, and is turned by a boom cylinder 31a which is capable of expansion and contraction.
  • the arm 32 has its proximal end portion supported by a distal end portion of the boom 31, and is turned by an arm cylinder 32a which is capable of expansion and contraction.
  • the bucket 33 has its proximal end portion supported by a distal end portion of the arm 32, and is turned by a bucket cylinder 33a which is capable of expansion and contraction.
  • the boom cylinder 31a, the arm cylinder 32a, and the bucket cylinder 33a are each made up of hydraulic cylinders.
  • the upper revolving body 4 is attached to an upper portion of the lower traveling body 2 via a revolving bearing 41 such that the upper revolving body 4 is capable of revolving.
  • a control section 42 an engine 43, a revolving motor (not shown), and the like are disposed.
  • a driving force of the revolving motor which is a hydraulic motor causes the upper revolving body 4 to revolve via the revolving bearing 41.
  • a hydraulic pump 44 which is driven by the engine 43 is disposed.
  • the hydraulic pump 44 supplies operating oil to respective hydraulic actuators (such as the blade cylinder 23a, the boom cylinder 31a, the arm cylinder 32a, the bucket cylinder 33a, the revolving motor, and the like).
  • a control seat 421 is disposed. To the left and right of the control seat 421, a pair of work manipulation levers (not shown) are disposed. In front of the control seat 421, a pair of travel levers (not shown) are disposed. While sitting on the control seat 421, an operator can control the hydraulic actuators by manipulating the work manipulation levers, the travel levers, and the like, to thereby perform traveling, revolving, works, and the like.
  • the engine 43 and a fluid cooling device 5 will now be described.
  • the engine 43 is disposed in an engine room which is provided in a rear portion of the upper revolving body 4.
  • the engine 43 of this embodiment is a so-called transverse engine whose crankshaft has its axis disposed in a left-right direction of the upper revolving body 4.
  • the fluid cooling device 5 is attached to the engine 43.
  • the fluid cooling device 5 includes: a blower unit 51 configured to generate an airflow by rotating a fan 51a; an oil cooler 52 (one example of a heat exchanger) that is disposed so as to face the blower unit 51; and a fan shroud 53 that is disposed between the blower unit 51 and the oil cooler 52.
  • the fan 51a is connected to a first end side of the crankshaft of the engine 43. Rotation of the crankshaft causes the fan 51a to rotate, thereby generating an airflow toward the engine 43. As a result, air (outside air) existing outside the engine room is taken into the engine room, to generate cool air flowing toward the engine 43.
  • the oil cooler 52 is disposed to the left of the fan shroud 53.
  • the oil cooler 52 has a rectangular parallelepiped shape that is elongated in the up-down direction.
  • the oil cooler 52 allows oil flowing therethrough to be cooled by heat exchange between the oil and air flowing outside.
  • the oil cooler 52 has a lower portion to which a supply hose 522 (corresponding to a first piping) for supplying operating oil is connected, and an upper portion to which a discharge hose 523 for discharging operating oil is connected.
  • a radiator 54 is disposed to the left of the fan shroud 53, and the radiator 54 is adjacent to the oil cooler 52.
  • the radiator 54 has a rectangular parallelepiped shape whose length in the up-down direction is equal to that of the oil cooler 52.
  • the radiator 54 as well as the oil cooler 52 covers an entire surface of the fan shroud 53.
  • the radiator 54 allows water flowing therethrough to be cooled by heat exchange between the water and air flowing outside.
  • the radiator 54 cools cooling water of the engine 43.
  • the fan shroud 53 is a member for efficiently exposing the oil cooler 52 and the radiator 54 to the cool air generated by the fan 51a.
  • the fan shroud 53 includes: a baffle part 531 for guiding an airflow; a protruding part 532 that protrudes from a lower portion of the baffle part 531; and an operating oil tank 533 that is disposed on a first side (in FIG. 3 , on the rear side) of the baffle part 531.
  • the baffle part 531, the protruding part 532, and the operating oil tank 533 are integrally molded.
  • the fan shroud 53 is formed by injection molding.
  • the baffle part 531, the protruding part 532, and the operating oil tank 533 are hollow, and their interior spaces are in communication with each other.
  • the baffle part 531 is a box-shaped member having a size almost equal to those of the oil cooler 52 and the radiator 54. A surface of the baffle part 531 on the side where the oil cooler 52 and the radiator 54 are disposed is entirely opened, and a surface of the baffle part 531 on the side where the fan 51a is disposed has an insertion hole whose diameter is slightly larger than the diameter of the fan 51a.
  • the protruding part 532 protrudes from the lower portion of the baffle part 531, and has a width almost equal to that of the baffle part 531.
  • the protruding part 532 supports lower portions of the oil cooler 52 and the radiator 54 from below.
  • the protruding part 532 has a protruding length that is almost equal to the total thickness of the oil cooler 52 and the radiator 54.
  • the oil cooler 52 and the radiator 54 are fixed to the baffle part 531 and to the protruding part 532 by a quadrangular frame 521.
  • the operating oil tank 533 is in communication with the oil cooler 52 through the discharge hose 523. Operating oil in the operating oil tank 533 is supplied to the respective hydraulic actuators by the hydraulic pump 44, and operating oil returning from the respective hydraulic actuators is returned to the operating oil tank 533 via the oil cooler 52.
  • the operating oil tank 533 includes: a tank main body 533a; a constricted portion 533b that is provided below the tank main body 533a; and an extending portion 533c that extends from the constricted portion 533b to a location below the protruding part 532.
  • the tank main body 533a has a box-like shape capable of storing operating oil therein.
  • the length of the tank main body 533a in the left-right direction is larger than that of the baffle part 531.
  • a left side surface of the tank main body 533a is more leftward than a left side surface of the baffle part 531
  • a right side surface of the tank main body 533a is more rightward than a right side surface of the baffle part 531.
  • the cross-sectional area of the constricted portion 533b is smaller than the cross-sectional area of the tank main body 533a.
  • a rear surface and left and right side surfaces of the constricted portion 533b are located more inward than a rear surface and the left and right side surfaces of the tank main body 533a.
  • the constricted portion 533b has an interior space that is in communication with the interior spaces of the tank main body 533a and the protruding part 532.
  • the extending portion 533c extends frontward from the lower portion of the constricted portion 533b, up to a middle portion of the protruding part 532 in a front-rear direction.
  • the extending portion 533c has a substantially triangular shape in a side view.
  • the front end of the extending portion 533c is in communication with a suction port 44a of the hydraulic pump 44 which will be described later.
  • the extending portion 533c has an interior space that is in communication with the interior spaces of the constricted portion 533b and the protruding part 532.
  • a fluid supply portion 533d is disposed on a second side (in FIG. 3 , on the front side) of the baffle part 531.
  • the fluid supply portion 533d is molded integrally with the baffle part 531.
  • a right-side end surface of the fluid supply portion 533d is flush with the right side surface of the baffle part 531, and a left-side end surface of the fluid supply portion 533d is more leftward than the left side surface of the baffle part 531.
  • the fluid supply portion 533d has an interior space that is in communication with the interior space of the baffle part 531.
  • the fluid supply portion 533d has, in its upper portion, an oil filler port 533e. Operating oil fed from the oil filler port 533e is supplied to the operating oil tank 533 via the baffle part 531. Unification of the fluid supply portion 533d and the baffle part 531 can offer a good efficiency of assembling and can allow effective use of a space in the engine room.
  • the hydraulic pump 44 is connected to a second end side of the crankshaft of the engine 43, the second end side being opposite to the side where the fan 51a is disposed.
  • the hydraulic pump 44 sucks operating oil through the suction port 44a, and ejects operating oil through an ejection port 44b.
  • a suction hose 441 (corresponding to a second piping) is connected to the suction port 44a of the hydraulic pump 44.
  • the suction hose 441 extends at the front side of the engine 43 toward the left, and is connected to the front end of the extending portion 533c. Since the suction hose 441 extends from the extending portion 533c which is located below the operating oil tank 533 to the suction port 44a of the hydraulic pump 44 through a region below the oil cooler 52 and the radiator 54, the space in the engine room can be effectively used.
  • Operating oil ejected from the ejection port 44b of the hydraulic pump 44 is sent to a control valve (not shown), and then is supplied from the control valve to the respective hydraulic actuators.
  • Operating oil returning from the respective hydraulic actuators is supplied from the control valve to the oil cooler 52 through the supply hose 522, and then is returned from the oil cooler 52 to the operating oil tank 533 through the discharge hose 523.
  • the supply hose 522 is disposed along the constricted portion 533b of the operating oil tank 533. More specifically, the supply hose 522 coming from the right side of the operating oil tank 533 extends through the rear side and the left lateral side of the constricted portion 533b, and is connected to the rear end of the oil cooler 52. In a plan view, portions of the supply hose 522 located on the rear side and on the left lateral side of the constricted portion 533b overlap the tank main body 533a.
  • the extending portion 533c has a projecting portion that is provided below the portion of the supply hose 522 located on the left lateral side of the constricted portion 533b. Arranging the supply hose 522 of the constricted portion 533b along the constricted portion 533b allows effective use of the space in the engine room.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Component Parts Of Construction Machinery (AREA)
EP19305082.0A 2019-01-23 2019-01-23 Dispositif de refroidissement de fluide et machine de construction Pending EP3686351A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19305082.0A EP3686351A1 (fr) 2019-01-23 2019-01-23 Dispositif de refroidissement de fluide et machine de construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19305082.0A EP3686351A1 (fr) 2019-01-23 2019-01-23 Dispositif de refroidissement de fluide et machine de construction

Publications (1)

Publication Number Publication Date
EP3686351A1 true EP3686351A1 (fr) 2020-07-29

Family

ID=65409010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19305082.0A Pending EP3686351A1 (fr) 2019-01-23 2019-01-23 Dispositif de refroidissement de fluide et machine de construction

Country Status (1)

Country Link
EP (1) EP3686351A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4375428A1 (fr) * 2022-11-25 2024-05-29 Yanmar Holdings Co., Ltd. Machine de travail

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441463A (en) * 1982-03-20 1984-04-10 Ford Motor Company Container for fluids for operating functions in motor vehicles
WO2004113698A1 (fr) 2003-06-17 2004-12-29 Hydac System Gmbh Dispositif de refroidissement par liquide
JP2007217919A (ja) 2006-02-15 2007-08-30 Kubota Corp 旋回作業機
US20130081387A1 (en) * 2010-03-26 2013-04-04 Guiseppe Zeolla Fluid cooling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441463A (en) * 1982-03-20 1984-04-10 Ford Motor Company Container for fluids for operating functions in motor vehicles
WO2004113698A1 (fr) 2003-06-17 2004-12-29 Hydac System Gmbh Dispositif de refroidissement par liquide
US20070163758A1 (en) * 2003-06-17 2007-07-19 Andreas Welsch Fluid cooling device
JP2007217919A (ja) 2006-02-15 2007-08-30 Kubota Corp 旋回作業機
US20130081387A1 (en) * 2010-03-26 2013-04-04 Guiseppe Zeolla Fluid cooling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4375428A1 (fr) * 2022-11-25 2024-05-29 Yanmar Holdings Co., Ltd. Machine de travail

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